US2724366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-leaking and flooding fountain pen
Assignee: Individual
•
Filing: 1951-07-02
•
Granted: 1955-11-22
•
Expires: 1971-07-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Miessner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:23
CPC Classifications
B; B43; B43K; B43K5/00; B43K5/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US255205A
Cited
US610818A
Cited
GB191506570A
Cited
US2005179A
Cited
US2093701A
Cited
US2101304A
Cited
FR818824A
Cited
US2480718A
Cited
US2387001A
Cited
US2425143A
Cited
US2509465A
Cited
FR941407A
Cited
US2522555A
Cited
US2648309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |